But not all investors are as optimistic about Google Glass, GigaOm reports.

John Frankel, a partner at ff Venture Capital — which has funded How About We and Klout — thinks Google Glass is interesting and has great use cases for doctors, he said at the Wearable Tech Expo in New York this week. But he's just not convinced it's going to work as a consumer product.

“It’s too big a change of behavior," Frankel said. "It’s technology that sits between you and other people … it feels to me that it’s too impersonal. It feels more like the Segway than anything else, which is, ‘hey, this looks great on paper but I probably wouldn’t have one in the garage.’”